Manchester City manager Manuel Pellegrini, left, believes Sergio Aguero, right, is one of the best players in the world

Manuel Pellegrini never had any doubt Sergio Aguero would soon be back in the goals for Manchester City.

Aguero, City's star striker, roared back to form after a mixed start to the season with five goals in a sensational 20-minute spell in Saturday's 6-1 demolition of Newcastle.

Prior to the game the 27-year-old, City's top scorer with 32 goals from 41 appearances last season, had not struck from open play since the victory over Chelsea on August 16. But as Pellegrini had hoped, his late penalty winner against Borussia Monchengladbach in midweek provided the spark he needed.

Pellegrini said: "I was confident. I just said it was very important for him to keep calm.

"He was not nervous because he was not scoring, he knows playing in the way we play and with his quality he will score.

"This team always will try to score more goals and play attractive football because, as I always say, I am a fan of the fans. The fans pay for their tickets and want to see their team playing in this way."

A knee injury suffered at Selhurst Park clearly affected him, although he did not miss any games, but he now seems to have fully recovered.

Pellegrini said: "Last season Kun finished the season without any problems and I said at the beginning of this season he is doing a lot of different things, so I am not worried about his injuries. At least he will not have muscle injuries.

"Maybe the kinds of fouls against Crystal Palace can injure him but I think muscle injuries he will not have more problems with."

Despite that, Aguero was withdrawn after 66 minutes to protect a slight hamstring niggle, denying him the chance to become the first player to score six in a Premier League game.